NR 664.0301(5)(a)(a) The monofill contains only hazardous wastes from foundry furnace emission controls or metal casting molding sand, and the wastes do not contain constituents which would render the wastes hazardous for reasons other than the toxicity characteristic in s. NR 661.0024, with EPA hazardous waste numbers D004 to D017. NR 664.0301(5)(b)1.a.a. The monofill has at least one liner for which there is no evidence that the liner is leaking. NR 664.0301(5)(b)1.c.c. The monofill is in compliance with generally applicable groundwater monitoring requirements for facilities with operating licenses under s. 291.25, Stats. NR 664.0301(5)(b)2.2. The owner or operator demonstrates that the monofill is located, designed and operated so as to assure that there will be no migration of any hazardous constituent into groundwater or surface water at any future time. NR 664.0301(6)(6) The owner or operator of any replacement landfill unit is exempt from sub. (3) if both of the following apply: NR 664.0301(6)(b)(b) There is no reason to believe that the liner is not functioning as designed. NR 664.0301(7)(7) The owner or operator shall design, construct, operate and maintain a run-on control system capable of preventing flow onto the active portion of the landfill during peak discharge from at least a 25-year storm. NR 664.0301(8)(8) The owner or operator shall design, construct, operate and maintain a run-off management system to collect and control at least the water volume resulting from a 24-hour, 25-year storm. NR 664.0301(9)(9) Collection and holding facilities (e.g., tanks or basins) associated with run-on and run-off control systems shall be emptied or otherwise managed expeditiously after storms to maintain design capacity of the system. NR 664.0301(10)(10) If the landfill contains any particulate matter which may be subject to wind dispersal, the owner or operator shall cover or otherwise manage the landfill to control wind dispersal. NR 664.0301(11)(11) The department shall specify in the operating license all design and operating practices that are necessary to ensure that the requirements of this section are satisfied. NR 664.0302(1)(1) The department shall approve an action leakage rate for landfill units subject to s. NR 664.0301 (3) or (4). The action leakage rate is the maximum design flow rate that the leak detection system can remove without the fluid head on the bottom liner exceeding one foot. The action leakage rate shall include an adequate safety margin to allow for uncertainties in the design (e.g., slope, hydraulic conductivity, thickness of drainage material), construction, operation and location of the leak detection system, waste and leachate characteristics, likelihood and amounts of other sources of liquids in the leak detection system and proposed response actions (e.g., the action leakage rate shall consider decreases in the flow capacity of the system over time resulting from siltation and clogging, rib layover and creep of synthetic components of the system, overburden pressures, etc.). NR 664.0302(2)(2) To determine if the action leakage rate has been exceeded, the owner or operator shall convert the weekly or monthly flow rate from the monitoring data obtained under s. NR 664.0303 (3), to an average daily flow rate (gallons per acre per day) for each sump. Unless the department approves a different calculation, the average daily flow rate for each sump shall be calculated weekly during the active life and closure period, and monthly during the long-term care period when monthly monitoring is required under s. NR 664.0303 (3). NR 664.0302 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06. NR 664.0303(1)(1) During construction or installation, liners (except in the case of existing portions of landfills exempt from s. NR 664.0301 (1)) and cover systems (e.g., membranes, sheets or coatings) shall be inspected for uniformity, damage and imperfections (e.g., holes, cracks, thin spots or foreign materials). Both of the following inspections are required immediately after construction or installation: NR 664.0303(1)(a)(a) Synthetic liners and covers shall be inspected to ensure tight seams and joints and the absence of tears, punctures or blisters. NR 664.0303(1)(b)(b) Soil-based and admixed liners and covers shall be inspected for imperfections including lenses, cracks, channels, root holes or other structural non-uniformities that may cause an increase in the permeability of the liner or cover. NR 664.0303(2)(2) While a landfill is in operation, it shall be inspected weekly and after storms to detect evidence of any of the following: NR 664.0303(2)(a)(a) Deterioration, malfunctions or improper operation of run-on and run-off control systems. NR 664.0303(2)(b)(b) Proper functioning of wind dispersal control systems, where present. NR 664.0303(2)(c)(c) The presence of leachate in and proper functioning of leachate collection and removal systems, where present. NR 664.0303(3)(a)(a) An owner or operator required to have a leak detection system under s. NR 664.0301 (3) or (4) shall record the amount of liquids removed from each leak detection system sump at least once each week during the active life and closure period. NR 664.0303(3)(b)(b) After the final cover is installed, the amount of liquids removed from each leak detection system sump shall be recorded at least monthly. If the liquid level in the sump stays below the pump operating level for 2 consecutive months, the amount of liquids in the sumps shall be recorded at least quarterly. If the liquid level in the sump stays below the pump operating level for 2 consecutive quarters, the amount of liquids in the sumps shall be recorded at least semi-annually. If at any time during the long-term care period the pump operating level is exceeded at units on quarterly or semi-annual recording schedules, the owner or operator shall return to monthly recording of amounts of liquids removed from each sump until the liquid level again stays below the pump operating level for 2 consecutive months. NR 664.0303(3)(c)(c) “Pump operating level” is a liquid level proposed by the owner or operator and approved by the department based on pump activation level, sump dimensions and level that avoids backup into the drainage layer and minimizes head in the sump. NR 664.0303 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06. NR 664.0304(1)(1) The owner or operator of landfill units subject to s. NR 664.0301 (3) or (4) shall have an approved response action plan before receipt of waste. The response action plan shall set forth the actions to be taken if the action leakage rate has been exceeded. At a minimum, the response action plan shall describe the actions specified in sub. (2). NR 664.0304(2)(2) If the flow rate into the leak detection system exceeds the action leakage rate for any sump, the owner or operator shall do all of the following: NR 664.0304(2)(a)(a) Notify the department in writing of the exceedence within 7 days of the determination. NR 664.0304(2)(b)(b) Submit a preliminary written assessment to the department within 14 days of the determination, as to the amount of liquids, likely sources of liquids, possible location, size and cause of any leaks and short-term actions taken and planned. NR 664.0304(2)(c)(c) Determine to the extent practicable the location, size and cause of any leak. NR 664.0304(2)(d)(d) Determine whether waste receipt should cease or be curtailed, whether any waste should be removed from the unit for inspection, repairs or controls and whether or not the unit should be closed. NR 664.0304(2)(e)(e) Determine any other short-term and longer-term actions to be taken to mitigate or stop any leaks. NR 664.0304(2)(f)(f) Within 30 days after the notification that the action leakage rate has been exceeded, submit to the department the results of the analyses specified pars. (c), (d) and (e), the results of actions taken and actions planned. Monthly thereafter, as long as the flow rate in the leak detection system exceeds the action leakage rate, the owner or operator shall submit to the department a report summarizing the results of any remedial actions taken and actions planned. NR 664.0304(3)(a)2.2. Conduct a fingerprint, hazardous constituent or other analyses of the liquids in the leak detection system to identify the source of liquids and possible location of any leaks, and the hazard and mobility of the liquid. NR 664.0304(3)(a)3.3. Assess the seriousness of any leaks in terms of potential for escaping into the environment. NR 664.0304 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06. NR 664.0309NR 664.0309 Surveying and recordkeeping. The owner or operator of a landfill shall maintain both of the following items in the operating record required under s. NR 664.0073: NR 664.0309(1)(1) On a map, the exact location and dimensions, including depth, of each cell with respect to permanently surveyed benchmarks. NR 664.0309(2)(2) The contents of each cell and the approximate location of each hazardous waste type within each cell. NR 664.0309 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06. NR 664.0310(1)(1) At final closure of the landfill or upon closure of any cell, the owner or operator shall cover the landfill or cell with a final cover designed and constructed to do all of the following: NR 664.0310(1)(a)(a) Provide long-term minimization of migration of liquids through the closed landfill. NR 664.0310(1)(d)(d) Accommodate settling and subsidence so that the cover’s integrity is maintained. NR 664.0310(1)(e)(e) Have a permeability less than or equal to the permeability of any bottom liner system or natural subsoils present. NR 664.0310(2)(2) After final closure, the owner or operator shall comply with all long-term care requirements contained in ss. NR 664.0117 to 664.0120, including maintenance and monitoring throughout the long-term care period (specified in the operating license under s. NR 664.0117). The owner or operator shall do all of the following: NR 664.0310(2)(a)(a) Maintain the integrity and effectiveness of the final cover, including making repairs to the cap as necessary to correct the effects of settling, subsidence, erosion or other events. NR 664.0310(2)(b)(b) Continue to operate the leachate collection and removal system until leachate is no longer detected. NR 664.0310(2)(d)(d) Maintain and monitor the groundwater monitoring system and comply with all other applicable requirements of subch. F. NR 664.0310(2)(e)(e) Prevent run-on and run-off from eroding or otherwise damaging the final cover. NR 664.0310 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06. NR 664.0312NR 664.0312 Special requirements for ignitable or reactive waste. NR 664.0312(1)(1) Except as provided in sub. (2), and in s. NR 664.0316, ignitable or reactive waste may not be placed in a landfill, unless the waste and landfill meet all applicable requirements of ch. NR 668 and both of the following: NR 664.0312(2)(2) Except for prohibited wastes which remain subject to treatment standards in subch. D of ch. NR 668, ignitable wastes in containers may be landfilled without meeting the requirements of sub. (1), provided that the wastes are disposed of in such a way that they are protected from any material or conditions which may cause them to ignite. At a minimum, ignitable wastes shall be disposed of in non-leaking containers which are carefully handled and placed so as to avoid heat, sparks, rupture or any other condition that might cause ignition of the wastes; shall be covered daily with soil or other non-combustible material to minimize the potential for ignition of the wastes and may not be disposed of in cells that contain or will contain other wastes which may generate heat sufficient to cause ignition of the waste. NR 664.0312 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; CR 19-082: am. (1) (a) Register August 2020 No 776, eff. 9-1-20. NR 664.0313NR 664.0313 Special requirements for incompatible wastes. Incompatible wastes, or incompatible wastes and materials, (see ch. NR 664 Appendix V for examples) may not be placed in the same landfill cell, unless s. NR 664.0017 (2) is complied with. NR 664.0313 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; correction made under s. 13.92 (4) (b) 7., Stats., Register March 2013 No. 687. NR 664.0314NR 664.0314 Special requirements for bulk and containerized liquids. NR 664.0314(1)(1) The placement of bulk or non-containerized liquid hazardous waste or hazardous waste containing free liquids (whether or not sorbents have been added) in any landfill is prohibited. NR 664.0314(2)(2) To demonstrate the absence or presence of free liquids in either a containerized or a bulk waste, the following test shall be used: Method 9095B (paint filter liquids test) as described in “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,” EPA SW-846, incorporated by reference in s. NR 660.11. NR 664.0314(3)(a)(a) All free-standing liquid is handled in one of the following ways: NR 664.0314(3)(a)2.2. It has been mixed with sorbent or solidified so that free-standing liquid is no longer observed. NR 664.0314(3)(c)(c) The container is designed to hold free liquids for use other than storage, such as a battery or capacitor. NR 664.0314(4)(4) Sorbents used to treat free liquids to be disposed of in landfills shall be nonbiodegradable. Nonbiodegradable sorbents are materials listed or described in par. (a); materials that pass one of the tests in par. (b) or materials that are determined by EPA to be nonbiodegradable through the 40 CFR part 260 petition process.
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Chs. NR 600-699; Environmental Protection – Hazardous Waste Management
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